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Bibliographic Details
Main Author:	C. A. Juárez-Alvarado
Format:	Artículo científico
Language:	es
Published:	Asociación Latinoamericana de Control de Calidad, Patología y Recuperación de la Construcción, A. C. 2017
Subjects:	Ingeniería
Online Access:	https://www.redalyc.org/articulo.oa?id=427651116005
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Compuestos cementantes fibroreforzados de bajo impacto ambiental comportamiento mecánico C. A. Juárez-Alvarado J. R. González López J. M. Mendoza-Rangel A. A. Zaldivar Cadena Ingeniería El presente texto expone los resultados del estudio del comportamiento mecánico de compuestos cementantes fibroreforzados utilizando consumos moderados y altos de ceniza volante (CV) en sustitución de volúmenes determinados de cemento (20%, 40% y 60%), con el objetivo de producir elementos constructivos primarios de bajo impacto ambiental. La experimentación realizada indicó que el esfuerzo a compresión, el módulo de elasticidad y la resistencia a flexión post agrietamiento, para los especímenes con relación a/mc = 0.60 y con 20% de sustitución con CV registraron incrementos en sus valores con respecto al control para ambas edades. No se evidenció deterioro en las mallas de fibras naturales por la exposición al medio alcalino. Los resultados hasta ahora obtenidos indican que es viable el uso de estos compuestos cementantes fibroreforzados como alternativa de construcción primaria de bajo impacto ambiental. 2017 artículo científico 2007-6835 https://www.redalyc.org/articulo.oa?id=427651116005 es http://www.redalyc.org/revista.oa?id=4276 Revista de la Asociación Latinoamericana de Control de Calidad, Patología y Recuperación de la Construcción application/pdf Asociación Latinoamericana de Control de Calidad, Patología y Recuperación de la Construcción, A. C. Revista de la Asociación Latinoamericana de Control de Calidad, Patología y Recuperación de la Construcción (México) Num.2 Vol.7

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// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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